Research has shown that access to AAC-based intervention and instruction in preschool and early elementary school is crucial when supporting children’s participation in school, communication, social development, and overall outcomes throughout their lives (Drager et al., 2010). However, there is significant inequity and many barriers in the provision of AAC services. As a result, many children experience a delay in receiving formalized AAC services and systems, which may impact their overall language development and educational outcomes, including literacy instruction. In this session, we will discuss utilizing multi-tiered systems of support (MTSS) and the descriptive teaching model to support AAC users with accessing and participating in comprehensive educational and literacy instruction and experiences. Additionally, we will review a case study to illustrate the power of MTSS and descriptive teaching in the quest to reimagine education, literacy, and linguistic justice in practice. Lastly, this course will provide some considerations and resources for the implementation of MTSS and descriptive teaching with AAC users.